horstmann



III 'STATES WM. J. HORSTMANN. OF PHILADELPHIA,IPENNSYLVANIA.

LOOM.

Specification of Letters Patent N o. 15,295, dated July 8, 1856.

To all whom t may concern Be it known that I, I/V. J. HoRsTMANN, of thecity of Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented a new and useful Improvement in Power-Loomsfor Weaving Piled Fabrics; and I do hereby declare that the following'is a full, clear, and exact description of' the same, reference beinghad to the accompanying drawings, forming part of this specification, inwhich- Figure l, is a transverse vertical section of the breast beam ofa loom, showing` also the application of my invention. Fig. 2 is a planof the same.

Similar let-ters of reference indicate corresponding parts in bothfigures.

This invention relates to a novel mode of applying and operating thepile wires in looms for weaving piled fabrics. The invention isprincipally designed to be applied to looms for weaving narrow goods, ascoach lace, trimmings, etc.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

The drawing represents the application of the invention to a loom fornarrow weaving and though only one set of pile wires and theirappendages is shown, it may be supposed that, and will be explained how,several sets of needles are applied, each set operating in a separateweb.

A, is the breast beam of the loom.

B, B, are two horizontal bars arranged one above the other behind andparallel with the breast beam and fitted to work longitudinally inguides C, C, secured to the back of the breast beam. These bars are forthe purpose of carrying the several sets of pile wires and theirappendages and are intended to be nearly or quite of the full length ofthe breast beam in order to carry a number of sets of wires equal to thegreatest number of pieces that can be woven in the loom at the sametime.

D, D, are the two pile wires constituting one set; each of these isattached permanently and rigidly by one end to a separate steel rod E,or E', so as to stand at right angles to the said rod. The rods E, Ff,are made flat, thin and elastic for some distance from the back ends towhich the wires are attached and the remaining portions `are made roundand large enough to be stiff. The rod E, carrying the wire D, is fittedto work in two guides f, g in opposite ends of a supporting piece F,attached to the top side of the upper box B, and the rod E", carryingthe wire D', is tted to work in a supporting piece F, of similarcharacter to F, attached to the top side of the lower bar B. Thesupporting pieces F, F, are set to give the rods a slight inclinationdownward toward the end next the breast beam but to keep them parallelwith each other and keep the wires parallel with each other'. The wiresstand on the contiguous sides of thc two rods, that is to say, the sideswhich are opposite each other. Each rod is provided with a shoulder orcollar a, between which and the rear guide f, of its supporting piece,is

coiled a spiral spring Z), which acts to throw the rod backward or fromthe breast beam; Mortises, oriother suitable cavities, are made in thefront of the breast beam, as shown at z, 7l, for the front ends of therods to work into and thus allow ,the bars B, B, to be brought near thebreast beam.

G, and G', are springs of india-rubber connecting the bars B and B, withthe guides C, C, or other stationary part of the loom, the said springsacting by their tension to dra-w their respective bars in the directionof the arrows marked on them in Fig. 2, and thus draw the rods E, E,toward each other, but these rods are not allowed to approach within adistance of each other equal to the width of the fabric to be produced,being prevented from a nearer approach by stop pins e, e, see Fig. 2,secured on the sides of each bar to come in contact with the guides C,C. 1 H, H, are cords attached to staples L, L, secured in the bars B, B,and passing over pulleys el, cl', in the guides C, C, to connect withtreadles or other suitable devices to move the bars in opposition to thesprings G, G, for the purpose of moving the rods E, E', from each other.The connections of these cords with the means of operating them does notrequire to be explained, as the operation may be effected in many ways.

I, I, are two spring latches attached to the breast beam for the purposeof engaging with the collars a, a, or'shoulders on the rods E, E, toprevent the rods and wires moving back from the breast beam. The rod E,is represented in both figures as being held by the latch I, but the rodE, is represented as being free from its latch I, and thrown back by itsspring b, as far as is allowed, the backward movement being limited bythe shoulder a, coming in contact with the front guide g, of itssupporting piece F.

J, is a small roller fitted to bearings se cured in the rear of thebreast beam, which the woven fabric passes over on its way to the breastbeam.

The operation of inserting and withdrawing the wires is performed in thefollowing manner. During the opening of the shed on or other of the barsB, B', is acted upon by the mechanism connected with the cords H, H',and moved in such a direction as to draw its respective rod, E, or E',away from the other rod far enough for its respective wire to clear theselvage threads of the warp, as is illustrated by the position of therod E, and wire D, shown in red color in Fig. 2. The wire D, before thisoperation has been confined in the web, immediately in front of theposition now occupied by D', by the shed having crossed over it, butbeing now liberated, is quickly thrown backward by the action of thespring Z), en its rod, till the shoulder a, strikes the front guide g.Immediately after the rod has been driven back by the spring, the bar Bis liberated by its treadle or other device ceasing to draw on its cordH, and left free to be acted upon by the spring G, which pulls it in thedirection indicated by the arrow marked upon it and thus carries thewire D, into the now open shed. In this position it is shown in blackoutline in Fig. 2. The advance of the lay causes the reed to drive backthe wire D, and its rod E, and after the shed has crossed over it, theother wire D', which during the above described operation of D, has beenin the web, is drawn out by the movement of the bar B', produced by thetract-ion of the cord H'. The wire D' now goes through the sameoperation as that just described, of the wire D, and after it has beencarried forward by the reed and had the shed crossed over it, the wire Dis withdrawn and its operation repeated. In this way the operationcontinues, the wires operating alternately and each having the shedcrossed upon 1t before the other is withdrawn.

The object of the spring latches I, I', is to retain the bars E, E', andwires D, D', after having been driven forward. These are not absolutelyindispensable to the operation of the wires, as the wires are retainedby the crossing of the shed, but they serve to relieve the tufts or pilethreads of the tension produced by the springs, b, b, and also retainthe wires in proper position at the commencement of the web. The rods E,E', are drawn away from the latches I, I', and liberated almost as soonas their respective bars B, B', commence their movement to withdraw thewires.

It is obvious that any number of sets of wires D, D', rods E, E', andtheir appendages may be attached to the same pair of bars B, B', andoperated in the same manner, and in looms for narrow weaving only onepair of bars is necessary to carry the wires, etc., for any number ofwebs. For wide weaving, precisely the same arrangement of parts as isshown in the drawing may be made, due allowance being, of course, madefor the width of the web.

I will here remark that the web bars B, B', may be arranged side byside, instead of one above the other as shown in the drawings, andfurther that the springs, Gr, Gr', may be of steel instead ofindia-rubber.

What Iclaim as my invention and desire to secure by Letters Patent, is,

l. The permanent attachment of the pile wires, by one end, toindependent sliding rods which are carried each on one side of the warpand controlled by springs, in such a manner as to allow them, anindependent movement longitudinally to the warp, by transversely slidingbars B, B, the said rods, bars and springs, being operated and operatingin combination with each other substantially as herein set forth.

2. And I also claim the spring latches I, I', acting in combination withthe rods E, E', of the pile wires, substantially as and for the purposeset forth.

WM. J. I-IORSTMANN.

Witnesses C. BRAZER, COLLIN PULLINGER.

